1 files changed, 275 insertions, 0 deletions
diff --git a/src/nse/test_nse_multipeer.c b/src/nse/test_nse_multipeer.c
new file mode 100644
index 0000000..28d066b
--- /dev/null
+++ b/src/nse/test_nse_multipeer.c
@@ -0,0 +1,275 @@
+/*
+     This file is part of GNUnet.
+     (C) 2009 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file nse/test_nse_multipeer.c
+ *
+ * @brief Testcase for the network size estimation service.  Starts
+ *        a peergroup with a given number of peers, then waits to
+ *        receive size estimates from each peer.  Expects to wait
+ *        for one message from each peer.
+ */
+#include "platform.h"
+#include "gnunet_testing_lib.h"
+#include "gnunet_nse_service.h"
+
+#define VERBOSE GNUNET_NO
+
+#define NUM_PEERS 4
+
+struct NSEPeer
+{
+  struct NSEPeer *prev;
+
+  struct NSEPeer *next;
+
+  struct GNUNET_TESTING_Daemon *daemon;
+
+  struct GNUNET_NSE_Handle *nse_handle;
+};
+
+struct NSEPeer *peer_head;
+
+struct NSEPeer *peer_tail;
+
+/**
+ * How long do we run the test?
+ */
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
+
+static int ok;
+
+static int peers_left;
+
+static unsigned int num_peers;
+
+static unsigned int total_connections;
+
+static struct GNUNET_TESTING_PeerGroup *pg;
+
+/**
+ * Check whether peers successfully shut down.
+ */
+static void
+shutdown_callback (void *cls, const char *emsg)
+{
+  if (emsg != NULL)
+  {
+#if VERBOSE
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutdown of peers failed: %s!\n",
+                emsg);
+#endif
+    if (ok == 0)
+      ok = 666;
+  }
+  else
+  {
+#if VERBOSE
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "All peers successfully shut down!\n");
+#endif
+    ok = 0;
+  }
+}
+
+static void
+shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct NSEPeer *pos;
+
+#if VERBOSE
+  FPRINTF (stderr, "%s",  "Ending test.\n");
+#endif
+
+  while (NULL != (pos = peer_head))
+  {
+    GNUNET_NSE_disconnect (pos->nse_handle);
+    GNUNET_CONTAINER_DLL_remove (peer_head, peer_tail, pos);
+    GNUNET_free (pos);
+  }
+
+  GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
+}
+
+/**
+ * Callback to call when network size estimate is updated.
+ *
+ * @param cls closure
+ * @param timestamp server timestamp
+ * @param estimate the value of the current network size estimate
+ * @param std_dev standard deviation (rounded down to nearest integer)
+ *                of the size estimation values seen
+ *
+ */
+static void
+handle_estimate (void *cls, struct GNUNET_TIME_Absolute timestamp,
+                 double estimate, double std_dev)
+{
+  struct NSEPeer *peer = cls;
+
+  FPRINTF (stderr,
+           "Received network size estimate from peer %s. logSize: %f std.dev. %f (%f/%u)\n",
+           GNUNET_i2s (&peer->daemon->id), estimate, std_dev,
+           GNUNET_NSE_log_estimate_to_n (estimate), num_peers);
+}
+
+
+static void
+connect_nse_service (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct NSEPeer *current_peer;
+  unsigned int i;
+
+#if VERBOSE
+  FPRINTF (stderr, "%s",  "TEST_NSE_MULTIPEER: connecting to nse service of peers\n");
+#endif
+  for (i = 0; i < num_peers; i++)
+  {
+    current_peer = GNUNET_malloc (sizeof (struct NSEPeer));
+    current_peer->daemon = GNUNET_TESTING_daemon_get (pg, i);
+    current_peer->nse_handle =
+        GNUNET_NSE_connect (current_peer->daemon->cfg, &handle_estimate,
+                            current_peer);
+    GNUNET_assert (current_peer->nse_handle != NULL);
+    GNUNET_CONTAINER_DLL_insert (peer_head, peer_tail, current_peer);
+  }
+}
+
+
+static void
+my_cb (void *cls, const char *emsg)
+{
+  if (emsg != NULL)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Peergroup callback called with error, aborting test!\n");
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Error from testing: `%s'\n");
+    ok = 1;
+    GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
+    return;
+  }
+#if VERBOSE
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Peer Group started successfully, connecting to NSE service for each peer!\n");
+#endif
+  GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Have %u connections\n",
+              total_connections);
+
+  GNUNET_SCHEDULER_add_now (&connect_nse_service, NULL);
+}
+
+
+/**
+ * Function that will be called whenever
+ * two daemons are connected by the testing library.
+ *
+ * @param cls closure
+ * @param first peer id for first daemon
+ * @param second peer id for the second daemon
+ * @param distance distance between the connected peers
+ * @param first_cfg config for the first daemon
+ * @param second_cfg config for the second daemon
+ * @param first_daemon handle for the first daemon
+ * @param second_daemon handle for the second daemon
+ * @param emsg error message (NULL on success)
+ */
+static void
+connect_cb (void *cls, const struct GNUNET_PeerIdentity *first,
+            const struct GNUNET_PeerIdentity *second, uint32_t distance,
+            const struct GNUNET_CONFIGURATION_Handle *first_cfg,
+            const struct GNUNET_CONFIGURATION_Handle *second_cfg,
+            struct GNUNET_TESTING_Daemon *first_daemon,
+            struct GNUNET_TESTING_Daemon *second_daemon, const char *emsg)
+{
+  if (emsg == NULL)
+  {
+    //fprintf(stderr, "Connected %s -> %s\n", GNUNET_i2s(first), second_id);
+    total_connections++;
+  }
+}
+
+
+
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct GNUNET_CONFIGURATION_Handle *testing_cfg;
+  unsigned long long total_peers;
+
+  ok = 1;
+  testing_cfg = GNUNET_CONFIGURATION_create ();
+  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (testing_cfg, cfgfile));
+
+#if VERBOSE
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting daemons.\n");
+  GNUNET_CONFIGURATION_set_value_string (testing_cfg, "testing",
+                                         "use_progressbars", "YES");
+#endif
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_number (testing_cfg, "testing",
+                                             "num_peers", &total_peers))
+    total_peers = NUM_PEERS;
+
+  peers_left = total_peers;
+  num_peers = peers_left;
+  pg = GNUNET_TESTING_peergroup_start (testing_cfg, peers_left, TIMEOUT,
+                                       &connect_cb, &my_cb, NULL, NULL);
+  GNUNET_assert (pg != NULL);
+  GNUNET_SCHEDULER_add_delayed (TIMEOUT, &shutdown_task, NULL);
+}
+
+
+static int
+check ()
+{
+  char *const argv[] = { "test-nse-multipeer",
+    "-c",
+    "test_nse.conf",
+#if VERBOSE
+    "-L", "DEBUG",
+#endif
+    NULL
+  };
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_END
+  };
+  GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
+                      "test-nse-multipeer", "nohelp", options, &run, &ok);
+  return ok;
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  int ret;
+
+  GNUNET_log_setup ("test-nse-multipeer",
+#if VERBOSE
+                    "DEBUG",
+#else
+                    "WARNING",
+#endif
+                    NULL);
+  ret = check ();
+  // GNUNET_DISK_directory_remove ("/tmp/test-nse-multipeer");
+  return ret;
+}
+
+/* end of test_nse_multipeer.c */